Articulating arm



FIG. 1 is a front left perspective view of a portion of an articulating arm showing our new design;

FIG. 2 is a front top perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a rear top perspective view thereof;

FIG. 6 is an enlarged partial view of area 6-6 of FIG. 2; and,

FIG. 7 is an enlarged partial view of area 7-7 of FIG. 5.

The dashed lines shown in FIGS. 1-7 are included for the purpose of illustrating environmental subject matter only and form no part of the claimed design. The dash-dot lines shown in FIGS. 1-7 show an unclaimed boundary between claimed and unclaimed subject matter. The bottom view of the portion of an articulating arm is omitted and forms no part of the claimed design. 

CLAIM The ornamental design for an articulating arm, as shown and described. 